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Yanka [14]
2 years ago
9

How many solutions does this equation have? 7a + 5 (a+3) = 8a + 4 (a+2)

Mathematics
1 answer:
Vlada [557]2 years ago
5 0

Answer:

no solution.

Step-by-step explanation: type it into the calculator on symbolab. it will tell you how to solve and give you the answer.

brainliest?

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3 years ago
Multiply (2x^2+4x-3)(x^2-2x+5)
polet [3.4K]

To answer this, you just go around multiplying the terms from the first set by everything in the second set. (For example, multiply 2x^2 by x^2, next by -2x, and finally by 5)


8 0
3 years ago
How can I do this, can you explain me
Sergio039 [100]

Answer:

Step-by-step explanation:

Start with h(t) = -16t^2 + initial height, which here is h(t) = -16t^2 + 1296.  Set this = to zero, which corresponds to the object hitting the ground (h = 0):

0 = -16t^2 + 1296.  Dividing all terms by -16, we get t^2 = 81, whose positive square root is 9.  It takes 9 seconds for the object to hit the ground.

3 0
3 years ago
Tom has a collection of 30 CDs and Nita has a collection of 18 CDs. Tom is adding 1 CD a month to his collection while Nita is a
KIM [24]

Answer:

3 months

Step-by-step explanation:

Let x be the number of months CDs are added at Tom and Nita's respective rates of 1 and 5 CDs/month.

Tom's collection after x months is = 30 + 1x

Nita's collection after x months is  = 18 + 5x

At some point they will have equal numbers of CD's, so set the equations equal to each other:

30 + 1x = 18 + 5x

4x = 12

x = 3 months

At 3 months both Tom and Nita will have the same number of CDs.

Tom:  30 + 1*3 = 33 CDs

Nita:  18 + 5*3 = 33 CDs

6 0
1 year ago
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A recipe calls for 12 cups of blueberries to make 7 jars of blueberry jam. What is true about the number of cups of blueberries
Semmy [17]
12/7 = 1.7 ,there is 1.7 cups of blueberries in every jar
6 0
3 years ago
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